Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584)
12/1984
12/27/1984EP0129200A1 Insulating gas for electric device and electric device
12/27/1984EP0129080A1 Vacuum interrupter
12/25/1984US4490707 Explosively-actuated, multi-gap high voltage switch
12/25/1984US4490594 High voltage circuit breaker
12/19/1984EP0128588A1 Gas-insulated electric device and insulating gas
12/19/1984EP0128377A2 Disconnect switch for a high-voltage switchgear, possibly with SF6 gas insulation
12/18/1984US4489291 Circuit breaker provided with parallel resistor
12/18/1984US4489226 Distribution class puffer interrupter
12/18/1984CA1179716A1 Dead tank gas-insulated puffer-type circuit interrupter having interrupting unit in insulated casing
12/12/1984EP0128084A1 Selective electronic trip device associated with a limiting circuit breaker
12/11/1984US4488023 Rotary-arc type gas-filled switch
12/11/1984US4488022 Mechanism for adjusting the speed of displacement of an arc contact for a switching apparatus
12/11/1984US4488021 Gas insulated disconnector
12/05/1984EP0127531A1 Hydraulically operating system for electric circuit breakers
12/05/1984EP0126929A2 Pressurised-gas switch
12/04/1984US4486635 High-voltage circuit breaker with improved puffer means
12/04/1984US4486634 Ground test switch for gas insulated switchgear
12/04/1984US4486633 High-voltage Y-shaped dead tank circuit interrupter
12/04/1984US4486632 High-voltage power switch
12/04/1984US4486631 Copper alloy
11/1984
11/28/1984EP0126347A1 Contact material for vacuum circuit interrupter, contact member of such material, a vacuum circuit interrupter and the use of such material
11/27/1984US4485366 Mechanical interlock mechanism for a vacuum contactor
11/27/1984US4484818 Apparatus and method for detecting the loss of vacuum
11/27/1984CA1178634A1 High voltage circuit breaker
11/21/1984EP0125553A2 Circuit breaker of spiral arc type
11/20/1984US4484086 Switching network
11/20/1984US4484047 Metal encapsulated, pressurized gas insulated high voltage switching apparatus
11/20/1984US4484046 Vacuum load break switch
11/20/1984US4484045 Molded case circuit breaker having improved arc resistant properties
11/20/1984US4484044 Vacuum load switch with a disconnecting switch
11/20/1984CA1178315A1 Puffer type current interrupter
11/13/1984US4482790 Vacuum interrupter
11/13/1984CA1177866A1 Stiff flexible connector for a circuit breaker or other electrical apparatus
11/13/1984CA1177865A1 Reduced pressure electrical switch
11/07/1984EP0123889A1 Direct current circuit breaker
11/07/1984EP0123823A1 Composite material with arc-extinguishing characteristics
11/06/1984US4481390 Vacuum circuit interrupter
10/1984
10/31/1984EP0123475A1 Method of joining a contact to an electrode
10/31/1984EP0016788B1 Electromagnetic contactor arc chute
10/30/1984US4480193 Switching system
10/30/1984CA1177105A1 Pressurized gas breaker having two v-forming break chambers for each phase
10/25/1984WO1984004201A1 Load break switch
10/24/1984EP0122595A1 Gas insulated switch assembly
10/23/1984US4479042 Contact overtravel adjustment apparatus for a vacuum contactor
10/23/1984US4478347 Unitary end closure and seal shield member for vacuum interrupter
10/16/1984US4477704 Power switching device
10/16/1984CA1176289A1 Gas blast circuit breaker with turning-on and and turning-off resistors
10/16/1984CA1176288A1 Vacuum interrupter with a spacially modulated axial magnetic field contact
10/10/1984EP0121180A1 Vacuum interrupter
10/02/1984US4475021 Air circuit breaker
10/02/1984US4475019 Puffer-type compressed gas circuit interrupter
10/02/1984US4475018 Puffer type gas circuit breaker
10/02/1984US4475017 Autopneumatic compressed gas switch
09/1984
09/26/1984EP0119563A2 Vaccum interrupter and Method of its production
09/25/1984US4473731 Vacuum circuit interrupter
09/19/1984EP0118844A2 Vacuum switch and method of manufacturing the same
09/18/1984US4472615 Contact switching device
09/18/1984CA1174717A1 Disconnector for high voltage shielded station
09/12/1984EP0118414A2 Horn switch
09/12/1984EP0118333A1 Switch device with insulating barrier introduced between the contacts when they open and with arc cutting means between the barrier and an insulating wall
09/12/1984EP0117914A2 Circuit breaker having a parallel resistor arrangement
09/11/1984US4471309 Vacuum detector
09/11/1984US4471188 Pneumatic puffer circuit breaker
09/11/1984US4471187 Gas-blast switch
09/11/1984US4471186 Abnormal condition detector of electric apparatus
09/11/1984US4471185 Series multiple nozzles for gas blast circuit interrupter
09/11/1984US4471184 Vacuum interrupter
09/05/1984EP0117754A2 Electrical switchgear
09/04/1984US4468977 Power drive for electric switchgear in which driving power is elastically transmitted thereto
08/1984
08/29/1984EP0117004A1 Apparatus for moving an element between two end positions by means of an energy buffer and keeping said elemnt in said end positions
08/29/1984EP0116837A1 Contact arrangement for vacuum switch
08/28/1984US4468533 Air circuit breaker
08/28/1984CA1173581A1 Electrical insulation body
08/21/1984US4467158 Puffer type gas circuit
08/21/1984US4467157 Pressurized gas circuit breaker including two V-mounted breaker chambers per phase
08/21/1984CA1173108A1 Vacuum circuit interrupter with insulated vacuum monitor resistor
08/21/1984CA1173090A1 Switch operating means including latching means maintaining switch contacts open or closed
08/21/1984CA1173088A1 Blow-out coil circuit breaker
08/15/1984EP0115739A1 Vacuum switch with two switch tubes in series per pole
08/14/1984US4466038 Hybrid power switch
08/14/1984US4465991 Operating device for effecting opening and closing operation of a vacuum interrupter with an electromagnet incorporated therein
08/14/1984US4465910 Self-generating gas flow interrupter
08/14/1984CA1172673A1 Circuit interrupter
08/08/1984EP0115292A2 Process for manufacturing copper-chromium alloys by melting, for use as contact material in vacuum power switches
08/02/1984WO1984003004A1 An arc splitter plate
07/1984
07/31/1984US4463400 DC Static switch with phase commutation
07/31/1984US4463230 Electric power circuit breaker
07/31/1984US4463229 Pneumatic operating mechanism for a circuit breaker
07/25/1984EP0113962A1 Vacuum interrupter
07/24/1984US4461937 Fail-safe hydraulically operated circuit breaker accumulator arrangement
07/24/1984CA1171444A1 Compressed gas circuit breaker
07/18/1984EP0113491A1 Electrical high voltage connector
07/17/1984US4460813 Load break switch drive mechanism
07/17/1984CA1171122A1 Circuit-breaker
07/11/1984EP0113208A1 Vacuum interrupter electrical contact members and method of fabrication thereof
07/10/1984US4459447 Self extinguishing type gas circuit breaker
07/10/1984US4459446 Contact arrangement for a switch
07/03/1984US4458121 DC Circuit breaker
07/03/1984US4458120 High-voltage circuit breaker
07/03/1984US4458119 Hybrid circuit breaker
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